public void ConsiderTheSum()
{
var sumSixTwo = new Binary(new Literal(6), new Token(TokenType.Plus, "+", null), new Literal(2));
var productSumSixTwo = new Binary(new Literal(3), new Token(TokenType.Star, "*", null), sumSixTwo);
var diffProduct = new Binary(productSumSixTwo, new Token(TokenType.Minus, "-", null), new Literal(4));
var leftGroup = new Grouping(diffProduct);
var sumThreeSeven = new Binary(new Literal(3), new Token(TokenType.Plus, "+", null), new Literal(7));
var final = new Binary(leftGroup, new Token(TokenType.Slash, "/", null), sumThreeSeven);
var result = new RpnPrinter().Print(final);
Assert.AreEqual(result, "3 6 2 + * 4 - 3 7 + /");
Console.WriteLine(result);
}
public void TransformToRPNNotation()
{
var expr = new Binary(
new Grouping(
new Binary(
new Literal("1"),
new Token(TokenType.PLUS, "+", null, 1),
new Literal("2")
)
),
new Token(TokenType.STAR, "*", null, 1),
new Grouping(
new Binary(
new Literal("4"),
new Token(TokenType.MINUS, "-", null, 1),
new Literal("3")
)
)
);
var sut = new RpnPrinter();
Assert.Equal("1 2 + 4 3 - *", sut.Print(expr));
}
public void PrinterTest()
{
var expression = new Binary
(
new Grouping(
new Binary(
new Literal(1),
new Token(TokenType.Plus, "+", null),
new Literal(2))
),
new Token(TokenType.Star, "*", null),
new Grouping(
new Binary(
new Literal(4),
new Token(TokenType.Minus, "-", null),
new Literal(3)
)
)
);
var result = new RpnPrinter().Print(expression);
Assert.AreEqual(result, "1 2 + 4 3 - *");
Console.WriteLine(expression);
}